Demountable rim



Jan. 1925- 1,522,806

A. J. CHARLTON DEMOUNTABLE RIM Filed Jan. 4, 1924 INVENTOR A TTOR NE YS To all whom it may concern:

Patented Jan. 13, 1925.

t-" UuirED" YSTA'TES ALBERT JOHN CHARLTON, 0']? LOWDEN, IOWA.

DEMOUNTAIBLE 'RIMU Application filed January 4, 1924. Serial No. 684,387.

Be it known that I, ALBERT JOHN CHARL- TON, a citizen of the United States, and a resident of Lowden, in the county of Cedar and State of Iowa, have invented a new and useful Improvement in Demountable Rims, of which the following is a full, clear, and exact description.

My invention relates to improvements in Demountable Rims for Motor Vehicles, and it consists in the combinations, constructions, and arrangements herein described and claimed. ,VVhile 'I have shown and described a means for securing'the demountable rim to a wheel of 'a motor vehicle, this construction, combination, and arrangement of parts is'claimed in a'separate application for patent on demountable rim, 7 81,172, filed August 9, 1924.1

An object of my invention'is to provide a demountable rim of the type described having relatively few parts and which may be actuated to release or receive a pneumatic tire with a minimum amount of labor.

A further object of my invention is to provide a .device of the type described in which the bolts for securing the cooperating parts of the rim to one another are securely fixed to the wheel adjacent the rim so that they may not become lost through carelessness of one actuating the demountable rim.

may be manufactured with little expense and which is thoroughly practical for the purpose intended. I

Other objects and advantages will appear in the following specificatiomand the novel features of the invention will be particularly pointed out in the appended claims.

a My invention is illustrated in the ace0mpanying drawings forming part of this application, in which Figure 1 is a side elevation of a portion of a wheel equipped with my improved demountable rim,

Figure 2 is a sectional view along the line 2 -2 of Figure 1,

carrier for supporting my demounta-ble rim,

and y 1 lugure 5 1s aside elevation of the mechanlsm illustrated in Figure 4.

In carrying out my invention, I make use of a vehicle wheel. In Figure l I have shown the ordinary type of disc wheel 1 having a flange 2, (see Figure 2) at the outer peripheral edge thereof for the purpose of supporting a tire carrying rim of the demountable type.

The tire carrying rim consists in a rim member 3 having an outwardly'extending side wall 4 at one edge thereof, and a deeply depressed portion 5 at theopposite edge. The rim 3 is of a single piece of metal, annular 1n contour and arranged to seat upon the portion 2 of the wheel 1. The depressed portion 5 of the rim 3 occupies that portion of the rim immediately beyond the outer side wall 6 of the wheel 1, and therefore extends toward the hub of the wheel.

A single side wall for'cooperation with the side wall4 of the rim 3 is provided in a removable flange 7 having substantially the same contour as the side wall 4 of the rim. Means for holding this flange 7in place upon the rim 3 is provided in a plurality of segments 8 disposed partially within the depressed portion 5 and seated at their ad accnt ends 9 upon reenforcing rivets 10 disposed transversely through the walls of the depressed portion 5 of the rim 3 (see Figure 3). The adiacent ends 9 of the segmental members 8 are-inclined at 11 so as to form a seat for these members upon the rivets 10.

Means for securely locking the segmental members 8 in position within the depressed portion 5 of the rim is provided in a plurality of bolts 12 projected through'a slightly depressed portion 13 in the side Wall 6 of the wheel 1 and arranged to project through openmgs 14 provided in the segmental members 8 and through openings in the adjacent portion of the sides of the de pressed portlon 5. Cotterpins 15 are pro- F jected through the bolts 12 on the outer side i of the wall 6 of the wheel 1 so as to prevent dislodgement of the bolt 12 from the wheel, the threaded nuts 16 being provided for the bolts 12 for the purpose of securely binding the segmental locking members 8 between the adjacent parts of the depressed portion 5, and therefore upon the removable flange 8.

The outermost edges of the. side. wa'lls' -t and 7 as well as the outermost ed es of the segmental locking members 8 are -eaded so as to reeni orce the members at these points.

From the foregoing description of the va rious parts of the device, the operation thereof may be readily understood. 'In securing a pneumatic tire casing upon my improved rim, it is first necessary to remove the nuts 16 from engagement with the bolts 12, and to withdraw the rim 3, together with the segmental locking members and the side wall or flange member 7 from the wheel '1. This will of course cause the bolts 12 to lie free of engagement with the openings 1'1 of the segmental locking members 8', and these members 8 may be moved outwardly and away from the rim 3, whereupon the side wall or removable flange member 7 may be withdrawn from engagement with the rim 3 and the tire casing placed upon the rim. v

The side wall or flange member 7'is then moved into engagement with the adjacent side of the tire casing, the segmental members 8 are moved to the position shown in Figures 1 and 2, and the entire rim 3, together with the members Tand 8, is moved to its original position upon the wheel 1. Care should be taken in having the openings 1a in registration with the bolts 12 on the wheel.

It is then merely necessary to place and tighten the nut 16, whereupon the Wheel is ready for use.

In Figures 4; and I have shown a device tor the purpose of supporting the rim 13 when not in place upon the wheel 1. This device is of special construction and is necessary to support my improved demountable rim in such a manner as to prevent the un intentional disengagement of the various parts of the rim from one another, which might occur if the rim were supported upon the ordinary type of rim supporting device. This device consists of tour radially extending arms supported upon a bracket 21 which is secured by means of a binding plate 22 to the rear portion of the motor vehicle of which the wheels 1 form a part. The upwardly extending arm 20 has a bolt portion a3 with a nut 24 thereupon which is arranged to take the place ofone of the bolts 12 in supporting the rim uponthe carrier. The downwardly extending arm 20 has a hook member 25 at the lowermost end thereof for the purpose-of holding the side wall or rim member 7 against dislodgement from its associate parts, while the arms .20 extending to each side are provided ,with bolt portions 26 somewhat similar to the bolt 23 for the purpose of passing through thatportion of the rim normally-occupied by the bolts 12 when th'erim is upon the wheel 1.

I'e1aim=z I v 1. A demountable rim of the type described comprising an annular rim having an outwardlyextending side wall at one side thereof and an 'inwardly extending recess at the opposite side, a removable flange forminga sidewallof the rim and arranged for disposition upon the rim adjacent to the recess thereinpand aplurality of segmental locking membersdispose'd in said recess in saidrim, and arranged to overlie a portion ofthe removable flange for preventing dislodgement 'ot said removableflange from said tire supporting rim when said locking inember'sarein said recess.

2. A dc-mountable rim of the type described comprising an annular rim having an outwardly extending side wall at one side thereof and aninwardly extending recess at 'the opposite side, a; removable flange formingfa gifde'wal'l ofthe 'rimand arranged for dispos tion u on the rim adjacent to the recess therein, and a plurality of segmental locking' member's disposed in said recess in said rim, and arranged to overlie a portion of the removable flange for preventing dislodgement of said removable flange from said tire supportingrim when said locking members are insaid recess, and means'for binding said segmental locking members in close engagementwith the walls of said recess, whereby said segmental locking members may not move out of engagement with said recess.

3. demountable rim of the type described comprising an annular rim having an outwardly extending side wall at one 'si'dethere'of and an inwardly extending recess'at the opposite side, a removable flange forming a sidewall of the rim and arranged for disposition upon the rim adjacent to the recess therein, and a plurality of segmental locking members-disposed in said recess in said rim, and arranged to overlie a portion of the removable flange for preventing dislodgemont of said removable flange from said tire supporting rim when said locking members are in said recess, a plurality of transversely disposed supporting members arranged to 'bridgethe recess in said rim and to support the adjacent ends of said segmental locking members, and means for securing said segmental locking members against dislodgment from said recess,'said means comprising a plurality of bolts projected through the recessed portion of said rim and through lthe segmental locking members. I I

4. A demountable rim of the type described comprising an annular rim-having an outwardly extending side wall at one side, a removable flange forming a side wall of said rim and arranged for disposition upon the rim at that side opposite to said outwardly extending side wall, a plurality of segmental locking members arranged to engage with said rim adjacent to said flange and to contact with said flange, when in place, said rim being fashioned to engage With said segmental looking members to prevent the lateral movement of said locking members, and means for locking said segmental locking members against movement relative to said rim, said means comprising bolts projected through portions of said rim and through openings provided in said segmental locking members, whereby the adjaoent portions of said rim may be drawn into close contact with said segmental looking members, and movement of said members relative to said rim precluded.

ALBERT JOHN CHARLTON. 

